Sprain: An injury to a ligament, often caused by twisting or wrenching

Strain: An injury to a muscle or tendon, often caused by over-use, force, or stretching

Contusion: (bruise)An injury to the soft-tissue, often produced by blunt force such as a kick, a fall, or a blow

Osgood-Schlatter disease: A condition of knee pain and swelling in young children and adolescents

Tendonitis: An inflammation of a tendon or the tendon covering

Orthopedic: Pertaining to the bones and joints

Overuse injury: The result of repetitive micro trauma to the tendons, bones and joints. Common examples include tennis elbow, swimmer’s shoulder, Little League elbow, runner’s knee, jumper’s knee, Achilles tendonitis and shin splints.

Shin splint: A specific problem that causes pain along the shin bone (tibia) — the large bone in the front of your lower leg. The pain is the result of an overload on your tibia and local connective tissues.

Stress fracture: Minute cracks that occur in the bone

Arthroscopic surgery: Evaluating and treating a joint by using surgical instruments placed into the joint through incisions measuring one centimeter or less

Muscle strain: More commonly called a "pulled" or "torn" muscle, this is an injury in which the muscle tears or rips, usually when the muscle is stretched too fast. It most often it occurs during running, working, or playing a sport.

Exercise-induced asthma: Shortness of breath and wheezing triggered by exercise or physical activity. Symptoms usually occur during or shortly after exercise. Not the same as chronic asthma.

Echocardiography: An evaluation of the structure and function of the heart, using sound waves that are recorded on an electronic sensor

ACL injury: The extreme stretching or tearing of the anterior cruciate ligament in the knee. A tear may be partial or complete